I can't receive Rss Feeds from Twitter (receiving error 401)

I've already posted here
http://getsatisfaction.com/twitterfee...

My problem is : I want to receive my friends's tweets in a script

seems I can receive my tweets (using user instead of friends) but not my friends's tweets

here is a copy of my original thread on twitterfeed
Hi I have an error 401 on my HTC Touch Pro using this url : http://twitter.com/statuses/friends_t...

I've find somewhere I have to use "user" instead of friends
so http://twitter.com/statuses/user_time... which is working
Can you confirm it is the right instruction ? with all infos on rss (seems to me with user I have only my user infos)

I've recorded my user and password using Opera on my TouchPro